Mercedes-Benz EQC Unveiled; Rivals Tesla Model X, Audi e-tron. Daimler has now officially added another sub-brand to Mercedes-Benz’ kitty. The unveiling of the EQC 400 marks the beginning of the EQ sub-brand for the company. The production-spec Mercedes-Benz EQC 400 has been showcased in a special event held in Stockholm with production scheduled to start from 2019